JavaScript String Methods

MethodDescription
charAt()Returns the character at the specified index (position)
charCodeAt()Returns the Unicode of the character at the specified index
concat()Joins two or more strings, and returns a copy of the joined strings
fromCharCode()Converts Unicode values to characters
indexOf()Returns the position of the first found occurrence of a specified value in a string
lastIndexOf()Returns the position of the last found occurrence of a specified value in a string
localeCompare()Compares two strings in the current locale
match()Searches a string for a match against a regular expression, and returns the matches
replace()Searches a string for a value and returns a new string with the value replaced
search()Searches a string for a value and returns the position of the match
slice()Extracts a part of a string and returns a new string
split()Splits a string into an array of substrings
substr()Extracts a part of a string from a start position through a number of characters
substring()Extracts a part of a string between two specified positions
toLocaleLowerCase()Converts a string to lowercase letters, according to the host's locale
toLocaleUpperCase()Converts a string to uppercase letters, according to the host's locale
toLowerCase()Converts a string to lowercase letters
toString()Returns the value of a String object
toUpperCase()Converts a string to uppercase letters
trim()Removes whitespace from both ends of a string
valueOf()Returns the primitive value of a String object

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